Move it to your Documents\Euro Truck Simulator 2\mod folder.
Many users specifically search for the "backwall piece" from the mod, which was a major update for version 1.46. This "piece" allows for detailed interior and exterior back-of-cab customization for Scania and DAF trucks.
Based on the version and the request for a "piece," there are two primary mods this usually refers to for the 1.46 update: 1. EKO Truck Parts (Backwall Piece)
Move it to your Documents\Euro Truck Simulator 2\mod folder.
Many users specifically search for the "backwall piece" from the mod, which was a major update for version 1.46. This "piece" allows for detailed interior and exterior back-of-cab customization for Scania and DAF trucks.
Based on the version and the request for a "piece," there are two primary mods this usually refers to for the 1.46 update: 1. EKO Truck Parts (Backwall Piece)